Just last week I was remarking that it was surprising more online lodging services were not using Google Earth. Well, one of the more established online lodging services for Europe, booking.com, has implemented its own Google Earth implementation. They have a hotel finder network link which lets you zoom over an area (you need to be below 100 km), and it will then load hotels for that area. One thing I was impressed by is they have implemented the GE and web interfaces in several languages (just click on the flag for the language you prefer). Each hotel placemark can contain photos, description, and links to more information including reservation capability. Once you find the hotel you think you like, make sure you zoom in in Google Earth to look at the scenery in the satellite photos. Also, turn on the Google Earth Community layers to see what interesting things are nearby.